Malicious PDF — malware analysis report

Static analysis result for SHA-256 685d9fa3b7b08eb7…

MALICIOUS

PDF

117.7 KB Created: 2021-04-14 13:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 0ebd6dbca428214c16e50afd9b6ab4fc SHA-1: 68052f0d627b2cac96e13665f416629470f990dd SHA-256: 685d9fa3b7b08eb7a0bd0e8b2495c0be299a1e389224829441c4d49aa04cbbe1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing multiple embedded URLs, with one specifically identified as a potential phishing or malware distribution point. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of embedded URLs suggests the document is designed to redirect users to malicious sites, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://golowaki.ru/strik?utm_term=ulysses+tennyson+analysis+line+by+line PDF link annotation
    • https://cdn.sqhk.co/xamitarerivu/iBh9hXX/pathogen_examples_in_animals.pdfIn PDF document text
    • http://wersita.fun/how_to_send_transcripts_to_uconn408l4.pdfIn PDF document text
    • http://poverkavoda.website/55787117924svdxq.pdfIn PDF document text
    • http://fastpeysistem.online/how_to_change_genie_wireless_keypad_codewy3x7.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/jutodiwararijusobu.pdfIn PDF document text
    • http://nature-ital.space/what_is_the_best_proform_treadmill_to_buyyl0gj.pdfIn PDF document text
    • http://rozogididibusar.sportsontheweb.net/mtabolisme_lipidique.pdfIn PDF document text
    • http://zitalogeloluwiw.mygamesonline.org/relationship_between_morphology_and_semantics_in_linguistics.pdfIn PDF document text
    • http://registrat.space/95657291861xdd8p.pdfIn PDF document text
    • http://f1l3download.site/how_to_deactivate_my_call_forwarding2mnrg.pdfIn PDF document text
    • http://verifiedbadges-form.com/tivowuropiwito4bkqf.pdfIn PDF document text
    • http://domainlimax.xyz/how_to_find_a_long_lost_friend_for_free_uk7816b.pdfIn PDF document text
    • https://cdn.sqhk.co/zovaratigu/1Lzjbha/nitivumibonuseduwe.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/cihjgG5/90345394767.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/immunization_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/fufeboxeri/BjjSIie/52579912226.pdfIn PDF document text
    • http://rejorevubirobu.sportsontheweb.net/risinufewujupixuko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sevoga/mijilanid.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/12807640545.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/650118847.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/50263517812.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/44246758329.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/28316399422.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/89680191642.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/84921909809.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18292 4604 bytes
SHA-256: ac3ebe182967c014dd9bd0785574b190f4c331b9c52127fb73f2bd44b6a9def4
font_01_sfnt_off00019247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19247 11184 bytes
SHA-256: 779e2d408040edf5f1581f81fd59585d7e0c882b0e99fa1599f8a31de6278101
font_02_sfnt_off0001b830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B830 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.